Hi,
It happened to me more times in Dorico SE, so I would like to see if it happens to others.
Copy a long passage from a project. Then select the starting point in a different project, and paste.
The first time I do this, only about the first half of the copied data is pasted. A second try is successful.
Maybe it’s just that I’m to fast in pasting, and there is something still going in the clipboard memory.
Paolo